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Question

For pure water at an unknown temperature, the $$pH$$ should always be equal to

A
$$7$$
B
$$any\ of\ them$$
C
$$ > 7$$
D
$$ < 7$$
Solution
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Correct option is D. $$any\ of\ them$$
pH of water can take an value because it is different at different temperatures.
Hence, Option "D" is the correct answer.

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